Duo may refer to:

Places

* Duo, West Virginia, an unincorporated community and coal town in Greenbrier County, West Virginia * Duo, Tampere, a shopping centre in Hervanta, Tampere, Finland * DUO, a twin-tower development in Singapore

Arts, entertainment and media

Fictional characters

* Duo (''Mega Man''), a fictional protagonist in the Capcom video game series ''Mega Man'' * Duo Maxwell, a fictional protagonist in the television series ''Gundam Wing'' * Duo, the fictional owl mascot of the language learning website and mobile application Duolingo

Films

* ''Duo'' (2006 film), a Canadian romantic comedy film directed by Richard Ciupka * ''Pas de deux'' (film), a 1969 Canadian film also known as ''Duo''

Music

Duet A duet (italian language, Italian: ''duo'') is a musical composition for two Performing arts, performers in which the performers have equal importance to the piece, often a composition involving two singers or two pianists. It differs from a har ...

or duo, a musical piece performed by two musicians * Musical duo, a musical ensemble composed of two musicians

Albums

* ''Duo'' (Kenny Drew and Niels-Henning Ørsted Pedersen album), 1973 *'' Duo 2'', Kenny Drew and Niels-Henning Ørsted Pedersen album, 1974 * ''Duo'' (Marilyn Crispell and Gerry Hemingway album), 1992 * ''Duo'' (Richard Marx and Matt Scannell album), 2008 * ''Duo'' (Merzbow album) box set, 2012 * ''Duo'' (Peter Ostroushko and Dean Magraw album), 1991 * ''Duo'' (Cedar Walton and David Williams album), 1990 * ''Duo'' (Hank Jones and Red Mitchell album), 1987 * '' In duo'', Mina album, 2003

Other media

* ''Duo'' (novel), a novel by Colette *'' The Duo'', a 2011 South Korean television series * Comedy duo, also known as a double act

Computing

* Core 2 Duo, a computer processor from manufacturer Intel * Google Duo, a video chat app made by Google * PowerBook Duo, a laptop computer from computer maker Apple * Duo Security, a multifactor authentication service now owned by

Cisco Cisco Systems, Inc. (using the trademark Cisco) is an American multinational digital communications technology conglomerate corporation headquartered in San Jose, California. Cisco develops, manufactures, and sells networking hardware, s ...

Other uses

* Duo Airways, a defunct UK airline * Duo Interpretation, a speaking event * TL Ultralight TL-22 Duo, Czech ultralight trike design * Duo, a clone of Uno (card game)